Montana fishing reports
222 reports for Montana — what's biting, water temps, and where to focus.
Yellowstone and Missouri trout settle into a cool October pattern
Early morning gauge readings show the Yellowstone and Missouri drainages running cold and steady. USGS gauge 06041500 reads 44°F at 1,350 cfs, gauge 06041000 reads 46°F at 1,280 cfs, and gauge 06043120 reads 41°F at 241 cfs. Gauge 06043500 shows 360 cfs. Those temperatures sit in the range where Brown Trout shift from summer feeding to fall behavior. Per Flylords Mag, autumn is streamer season, as cooling water and fading insect activity push trout toward baitfish and sculpins. Flylords also notes trout in early autumn are bulking up ahead of winter. Spawning closures on some Montana rivers began October 1 per MT FWP Fishing News, so check current regulations and closure maps before choosing a stretch.
Cold Montana rivers set up a patient streamer-and-nymph week
Water temperatures held at 45 to 46°F across all four gauges we track for the Yellowstone and Missouri region on the evening of Oct. 16. USGS gauge 06041500 read 1,320 cfs and gauge 06041000 read 1,280 cfs, both at 45 to 46°F. Gauge 06043120 ran 246 cfs at 45°F, and gauge 06043500 showed 355 cfs. That is cold, steady, moderate flow for mid-October. Per Flylords Mag, early autumn is streamer season, as cooling water sends trout after baitfish and sculpins to build calories before winter. The same outlet notes that drifting streamers, not only stripping them, can draw followers that ignore a fast retrieve.
Missouri and Yellowstone trout windows open as fall cools
Water is running cool and fairly low across the Montana gauges this Friday. USGS gauge 06041500 reads 1,320 cfs at 50°F, and gauge 06041000 shows 1,280 cfs at 45°F, while gauge 06043120 reads 237 cfs at 48°F. Gauge 06043500 reports 360 cfs. Readings in the 45 to 50°F range are comfortable for fish and point to steady fall feeding rather than stress. Per MT FWP Fishing News, spawning closures on some rivers began October 1, and the Big Hole River Section 1 closure remained in place after Section 5 reopened on improved flows. Check current FWP notices before choosing a stretch.
Yellowstone trout turn to streamers as fall cools the water
Gauge readings on the Yellowstone and Missouri system show cold, steady water this morning. USGS gauge 06041500 reads 43°F at 1,320 cfs, and gauge 06041000 reads 45°F at 1,290 cfs. Smaller flows sit at 241 cfs and 365 cfs on gauges 06043120 and 06043500, with 06043120 at 41°F. That is firmly fall water. Per Flylords Mag, early autumn is streamer season as cooling water and fading insect activity push trout toward baitfish and sculpins. Flylab (Substack) also ran a Yellowstone River drift-boat essay this week, a reminder of how the cottonwood-and-Absaroka stretch fishes in October.
Fall flows hold steady as cooling water sets up streamer season
Gauge 06041500 reads 1,320 cfs at 45°F and gauge 06041000 shows 1,290 cfs at 46°F, with gauge 06043120 at 241 cfs and 45°F. Gauge 06043500 reports 370 cfs. Water in the mid-40s is the signal that autumn has taken hold. Per Flylords Mag, early autumn is streamer season, as cooling water and fading insects push trout to hunt baitfish and sculpins to pack on calories before winter. Brown Trout are the species to plan around.
Yellowstone and Missouri trout settle into fall pattern
Water is cool and fishable across the Yellowstone and Missouri system this week. USGS gauge 06041500 reads 1,310 cfs at 50°F, and gauge 06041000 shows the same flow at 46°F. Smaller water runs lower: gauge 06043120 reads 246 cfs at 49°F and gauge 06043500 shows 376 cfs. That temperature range is where Brown Trout typically shift from summer feeding to autumn streamer hunting. Flylords Mag notes that with temperatures dropping and insects thinning, trout turn to baitfish and sculpins, and it recommends drifting streamers in early autumn rather than only stripping them. Brown Trout are the species to plan around right now.
Flathead and Bitterroot trout settle into fall streamer season
The USGS gauge 12372000 read 54°F water and 7,210 cfs this morning, a cool, high-volume river that fits a classic autumn pattern. At 54°F, trout are comfortable and feeding steadily rather than stressed, which makes midday the productive stretch. Per Flylords Mag, autumn is streamer season: with insects thinning out and water cooling, trout switch to hunting baitfish and sculpins to pack on calories before winter. Field & Stream adds that blue-winged olives dominate fall mayfly hatches, so a small dry or emerger is worth having rigged for overcast afternoons.
Fall brown trout season builds on Yellowstone and Missouri
Water temperatures sitting in the mid-40s mark the turn to true fall fishing in southwest Montana. USGS gauge 06041500 reads 1,350 cfs at 46°F, and gauge 06041000 shows 1,340 cfs at 46°F. Gauge 06043120 reports a lower 250 cfs at 45°F, and gauge 06043500 shows 381 cfs. Cool, steady water like this typically gets brown trout feeding with purpose ahead of winter. On technique, Flylords Mag says autumn is streamer season. Trout shift toward baitfish, sculpins and even smaller trout as insects thin out, and the outlet suggests drifting streamers early in the fall transition. Trout Unlimited's "let it ride" tip applies to long drifts: if a cast lands off the feeding lane, leave the fly alone for a moment before lifting it, which avoids spooking the fish. Flylab ran a Yellowstone River drift-boat essay with yellow-leafed cottonwoods framing the Absarokas, a good picture of what the valley looks like right now.
Yellowstone and Missouri: fall flows settle as spawn closures begin
Western Montana rivers are in their fall transition this week, and the water readings reflect it. The USGS gauge 06041500 shows 1,370 cfs at 50°F, while gauge 06041000 reads 1,340 cfs at 47°F. Gauge 06043120 runs lower at 255 cfs and 48°F, and gauge 06043500 shows 381 cfs. Those cooler temperatures fit the autumn pattern that Field & Stream describes, where streams cool and trout become vigorous again before the first snow. MT FWP Fishing News reports that spawning closures on some rivers began October 1. It also says the angling closure on Section 5 of the Big Hole River has been lifted after rain improved flows. The Section 1 closure remains in place. Check current regulations for any water you plan to fish before heading out. On technique, Flylords Mag says autumn is streamer season. Water temperatures drop, insects fade, and trout turn to baitfish and sculpins to pack on calories. Gink and Gasoline adds that heavier weight often makes the difference on nymph rigs when fish are not eating, so piling on split shot can pay off.
Fall browns turn aggressive as streamer season takes hold
Water temperatures sit in the mid-40s across our gauges, right where fall streamer fishing starts to pay off. USGS gauge 06043120 read 44°F at 255 cfs, USGS gauge 06041500 showed 45°F at 1,420 cfs, and USGS gauge 06041000 came in at 47°F at 1,400 cfs. Flylords Mag calls autumn streamer season, noting that trout stop leaning on insects and hunt baitfish, sculpins and even other trout to pack on calories before winter. Another Flylords Mag post describes spotting a big brown from the bank on a bright, clear day. The anglers watched it cruise a feeding circle and sip the surface, then landed a cast right in front of it. Spending a few extra minutes scanning from the bank before you wade is time well spent.
Yellowstone and Missouri trout shift into fall streamer mode
Gauge readings show cold, steady water across the Yellowstone and Missouri drainage this week. Water temperatures read 47°F to 50°F across the USGS gauges, with flows near 1,390 cfs on 06041500 and 06041000, and lower flows of 260 cfs on 06043120 and 386 cfs on 06043500. That is solidly fall trout water. Flylords Mag notes that with cooling water and fading insects, trout turn to hunting baitfish, sculpins and other trout, which makes early autumn streamer season. A Flylab essay on a Yellowstone River float in yellow-leafed cottonwood country is a reminder of how this season looks on the river.
Yellowstone browns and rainbows shift toward streamer season
Gauge 06041500 reads 1,390 cfs at 46°F, and gauge 06041000 shows 1,360 cfs at 47°F. Gauge 06043120 runs colder at 42°F on 269 cfs. Those are classic mid-October numbers, with water cooling into the range where trout stop chasing bugs and start chasing protein. Flylords Mag notes that autumn is streamer season, as insects fade and trout hunt baitfish and sculpins to pack on calories before winter. Flylab (Substack) described the Yellowstone this season as a drift of yellow cottonwoods under the Absaroka Mountains, a good reminder of how far into fall the valley is.